METHOD AND APPARATUS FOR PROGRAMMABLE AND CONFIGURABLE SECTOR LOCALIZATION IN DISTRIBUTED ANTENNA SYSTEM

摘要

An apparatus for implementing an adaptive sectorization in a DAS (Distributed Antenna System) is provided. In some embodiment of the present disclosure, a DAS that supports an adaptive sectorization has the flexibility of supporting multiple sectors simply with an extension of STM (Sectorization Module) without being affected by the hardware structure. Where no sector splitting is needed, the STM is replaced by a COM (Head-end Combining Module) to provide a simple structure for supporting the sectors.

主权项

1. A head-end unit for supporting a variable sectorization in a DAS (Distributed Antenna System), the head-end unit comprising:
a plurality of FEMs (Front-end Modules), each FEM being configured to:
receive a downlink radio frequency (RF) signal of a corresponding base station among a plurality of supporting base stations,filter the downlink RF signal to generate a filtered signal, andadjust a power level of the filtered signal to generate a level-adjusted signal; at least one downlink STM (Sectorization Module) being configured to:
split each of the level-adjusted signals into a plurality of splitted signals by the number of supporting sectors,selectively attenuate at least one of the plurality of splitted signals in order to control a combination of the respective splitted signals associated with the individual level-adjusted signals for each of the supporting sectors, andcombine the selectively attenuated signals to generate a respective downlink sector signal for each of the supporting sectors; a plurality of DTMs (Distribution Modules), each being connected to at least one HOM (Head-end Optic Module) and being configured to distribute the downlink sector signal to said at least one HOM; and a plurality of HOMs, each being optically connected to a remote unit located in the supporting sectors and being configured to transmit the downlink sector signal to the remote unit.